diff --git a/vendor/go.etcd.io/etcd/clientv3/cluster.go b/vendor/go.etcd.io/etcd/clientv3/cluster.go
index ce97e5c..785672b 100644
--- a/vendor/go.etcd.io/etcd/clientv3/cluster.go
+++ b/vendor/go.etcd.io/etcd/clientv3/cluster.go
@@ -17,19 +17,18 @@
 import (
 	"context"
 
-	pb "go.etcd.io/etcd/etcdserver/etcdserverpb"
-	"go.etcd.io/etcd/pkg/types"
+	pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
+	"github.com/coreos/etcd/pkg/types"
 
 	"google.golang.org/grpc"
 )
 
 type (
-	Member                pb.Member
-	MemberListResponse    pb.MemberListResponse
-	MemberAddResponse     pb.MemberAddResponse
-	MemberRemoveResponse  pb.MemberRemoveResponse
-	MemberUpdateResponse  pb.MemberUpdateResponse
-	MemberPromoteResponse pb.MemberPromoteResponse
+	Member               pb.Member
+	MemberListResponse   pb.MemberListResponse
+	MemberAddResponse    pb.MemberAddResponse
+	MemberRemoveResponse pb.MemberRemoveResponse
+	MemberUpdateResponse pb.MemberUpdateResponse
 )
 
 type Cluster interface {
@@ -39,17 +38,11 @@
 	// MemberAdd adds a new member into the cluster.
 	MemberAdd(ctx context.Context, peerAddrs []string) (*MemberAddResponse, error)
 
-	// MemberAddAsLearner adds a new learner member into the cluster.
-	MemberAddAsLearner(ctx context.Context, peerAddrs []string) (*MemberAddResponse, error)
-
 	// MemberRemove removes an existing member from the cluster.
 	MemberRemove(ctx context.Context, id uint64) (*MemberRemoveResponse, error)
 
 	// MemberUpdate updates the peer addresses of the member.
 	MemberUpdate(ctx context.Context, id uint64, peerAddrs []string) (*MemberUpdateResponse, error)
-
-	// MemberPromote promotes a member from raft learner (non-voting) to raft voting member.
-	MemberPromote(ctx context.Context, id uint64) (*MemberPromoteResponse, error)
 }
 
 type cluster struct {
@@ -74,23 +67,12 @@
 }
 
 func (c *cluster) MemberAdd(ctx context.Context, peerAddrs []string) (*MemberAddResponse, error) {
-	return c.memberAdd(ctx, peerAddrs, false)
-}
-
-func (c *cluster) MemberAddAsLearner(ctx context.Context, peerAddrs []string) (*MemberAddResponse, error) {
-	return c.memberAdd(ctx, peerAddrs, true)
-}
-
-func (c *cluster) memberAdd(ctx context.Context, peerAddrs []string, isLearner bool) (*MemberAddResponse, error) {
 	// fail-fast before panic in rafthttp
 	if _, err := types.NewURLs(peerAddrs); err != nil {
 		return nil, err
 	}
 
-	r := &pb.MemberAddRequest{
-		PeerURLs:  peerAddrs,
-		IsLearner: isLearner,
-	}
+	r := &pb.MemberAddRequest{PeerURLs: peerAddrs}
 	resp, err := c.remote.MemberAdd(ctx, r, c.callOpts...)
 	if err != nil {
 		return nil, toErr(ctx, err)
@@ -130,12 +112,3 @@
 	}
 	return nil, toErr(ctx, err)
 }
-
-func (c *cluster) MemberPromote(ctx context.Context, id uint64) (*MemberPromoteResponse, error) {
-	r := &pb.MemberPromoteRequest{ID: id}
-	resp, err := c.remote.MemberPromote(ctx, r, c.callOpts...)
-	if err != nil {
-		return nil, toErr(ctx, err)
-	}
-	return (*MemberPromoteResponse)(resp), nil
-}